Fragment Covalent Bond Formation at SOS1 Tyr-884 Inhibits KRAS Nucleotide Exchange
Khuchtumur Bum-Erdene, Giovanni Gonzalez-Gutierrez, Mona K Ghozayel, Samy Meroueh
This paper identifies a covalent inhibitor of SOS1-KRAS binding by screening fragments that form bonds at Tyr-884, showing time- and concentration-dependent inhibition of KRAS nucleotide exchange.
bioRxiv · Nov 4, 2026 · PreprintPharmacology & Toxicology